39995446511 has 12 divisors (see below), whose sum is σ = 41926646160. Its totient is φ = 38149768800.

The previous prime is 39995446501. The next prime is 39995446531. The reversal of 39995446511 is 11564459993.

It is a de Polignac number, because none of the positive numbers 2^k-39995446511 is a prime.

It is a super-2 number, since 2×39995446511² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39995446501) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 84611 + ... + 295211.

It is an arithmetic number, because the mean of its divisors is an integer number (3493887180).

Almost surely, 2^39995446511 is an apocalyptic number.

39995446511 is a deficient number, since it is larger than the sum of its proper divisors (1931199649).

39995446511 is a wasteful number, since it uses less digits than its factorization.

39995446511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211006 (or 210983 counting only the distinct ones).

The product of its digits is 5248800, while the sum is 56.

The spelling of 39995446511 in words is "thirty-nine billion, nine hundred ninety-five million, four hundred forty-six thousand, five hundred eleven".